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VAT 編號驗證

驗證歐盟 VAT 編號,辨識核發國家並標準化格式。

100% in your browser. Your file never leaves your device.

Enter a VAT number above.

How to use

  1. Paste or type a VAT number into the input field above.
  2. Click Validate — the tool checks the format against the known patterns for each EU member state.
  3. Results show the validity status, issuing country, and normalised format.

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常見問題

Is the VAT number validator free?
Yes, completely free with no signup and no usage limits.
Does my VAT data leave my device?
No. All validation runs in JavaScript inside your browser. Nothing is sent to any server.
Does it work on mobile?
Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

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